Notes

Funding

This research received no grant from any funding agency in the public, commercial or not-for-profit sectors.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest

Ethical approval

All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The ethical approval was obtained from Kırıkkale University Clinical Research Ethical Committee, Date: 10.11.2015, Number: 25/08.

Informed consent

Informed consent was obtained from all individual participants included in the study.